PCPAM-MMT杂化絮凝剂的制备和絮凝性能(英文)

Preparation of a CPAM-MMT hybrid polymer and its flocculation performance

在合成CPAM乳液的基础上,用DMC对Na-MMT进行插层有机化改性制备O-MMT,采用分散聚合法合成CPAM-MMT乳液絮凝剂,并对其形态和性能表征,得出:PCPAM-MMT杂化絮凝剂在水中的形态显树枝状,MMT有助于提高模拟污水高岭土的絮凝性能,最佳添加量为10 mg·L-1;PCPAM-MMT杂化絮凝剂对Cr6+具有较强的吸附能力,CPAM对Cr(VI)的脱色率是18%.而CPAM-MMT(1)的脱色率是28%.

A CPAM-MMT hybrid polymer was synthesized through dispersing polymerization with Acrylamide （ AM） , the organic modified montmorillonite （ O-MMT） , 2-methylacryloylxyethyl trimethyl ammonium chloride （ DMC） and its flocculation performance was also studied .The experimental results showed that morphology of the CPAM-MMT hybrid polymer was a multi-branched structure which helps to entrap more suspended colloidal-particles and gives a better bridging capacity , the flocculation ability of the CPAM-MMT hybrid polymer on the kaolin suspensions was better than that of CPAM and its optimum dosage was about 10 mg ＆#183; L-1 , the CPAM-MMT hybrid polymer possessed the adsorption function on Cr （ VI） ions, which made the decolorization rate on Cr（VI） larger than that of the CPAM, the CPAM on Cr（VI）was 18%.However, the CPAM-MMT（1） hybrid polymer was 28%.